Your newsletter, in your voice. Written in minutes.
A team of seven AI specialists trained on your brand. Pick a topic and get a publish-ready newsletter that turns what you know into an audience that trusts you.
No credit card required. 3 free newsletters.
Stop setting goals. Build systems.




Your newsletter takes all day. Or it doesn't get written at all.
You sit down to write and hours later you're still not done. So you skip a week. Then another. The audience you have stops trusting you. The audience you could've built never finds you.
From idea to audience in three steps
Teach it your brand
Share three samples. Flyletter builds a complete voice profile so every issue sounds like you.
Pick a topic and go
Bring an idea, take a suggestion, or let Flyletter decide. Get a publish-ready draft in your voice.
Review and promote
Refine anything by chatting with Flyletter, then generate weeks of social posts to promote with a click.
Six roles, one newsletter pipeline
Give Flyletter a topic. Six content specialists plan, research, structure, draft, edit, and illustrate your newsletter. You review and send.
A brand profile that sounds like you
Built from three writing samples: your tone, rhythm, positioning, vocabulary, and the things you'd never say.
Write on schedule, wake up to drafts
Choose a writing schedule and Flyletter writes overnight. Drafts are waiting when you sit down to review and approve.
One newsletter, weeks of social posts
Flyletter's Publicist turns every issue into platform-ready posts for X, LinkedIn, Threads, and Substack Notes. Publish once, show up everywhere.
Flyletter, in Claude too
Teach Claude to write in your brand voice. Save newsletter ideas from any Claude chat back to Flyletter. The MCP connector works wherever you use Claude.
Learn about the connector“Flyletter writes the issue and the social posts in the time I used to spend on one channel alone.”

“Spiritual content has its own language, and most AI tools produce generic wellness content. Flyletter captured my voice. The way I phrase things, the references I use, the words my audience knows me for.”

“I tried writing newsletters in ChatGPT for months. Every issue meant a multi-prompt sequence and hoping the output didn't drift. Flyletter has the content team built in.”

Plans that grow with your newsletter
Your full AI content team on every plan. Pay for volume, not access.
Creator
- ✓8 newsletters/month
- ✓1 brand profile
- ✓Claude MCP connector
- ✓$5/newsletter overage
Pro
- ✓20 newsletters/month
- ✓3 brand profiles
- ✓Claude MCP connector
- ✓$4/newsletter overage
Business
- ✓Custom newsletter volume
- ✓Custom brand profile volume
- ✓Claude MCP connector
- ✓Founder-direct support

“I've been writing for years. Built and sold a content business, ran growth at a startup, self-published books for fun. But I couldn't keep a consistent newsletter. I spent months prompting ChatGPT and Claude. It took longer than just writing it myself. So I built Flyletter for me, and now for you.”

Frequently asked questions
Your next newsletter is minutes away
Sign up, share a few writing samples, and let your AI content team take it from there.
Start free